Hello, I started with the oscillator design, I need an 20MHz oscillator with low jitter, I selected the Pierce Topology, and i'm going to start with the the design and simulation phase.

I have a problem with de simulation phase, because i don't know how i'm going to start this phase, when i'm going to implement the oscillator schematic, i need the circuit equivalent of the crystal, i searched for a Crystal that worked in fundamental mode, with this characteristic, but i can't find the circuit equivalent of the crystal in the datasheets. I don't know if this values are important in the simulation phase.

Anyone have experience with the oscillator design?

Hello, Thanks for the answer.

When i'm writing "simulation phase"... i'm writing about that i'm doing the simulations using spectreRF, now... i know about de Q of the crystal... but the problem is that i can't find the circuit equivalent of the crystal... i need a crystal with 20MHz of frequency and a capacitance load of 20 pF. Do you know some web, where I can find the circuit equivalent for a crystal with this specifications?

Thanks!

Thanks for your help!

I will continue looking for a crystal with these characteristics.

=)

Hello.

I started with the initial condition and... the design is running ok... now i'm going to work with a 12MHz crystal.

Thanks!